10.5″ Railed Upper Build Kit with USB

Authentic 10.5″ Railed Upper Build Kit with USB – Buy Undetectable Firearm Kits in the UK

Looking to buy 3D printed gun kits in the UK or upgrade your build with reliable upper parts? The 10.5″ Railed Upper Build Kit with USB, available now at TopBoy Ghost Guns UK, is designed for performance, durability, and seamless compatibility with your ghost gun lower receiver builds.

Whether you’re building from scratch or modifying an existing kit, this undetectable firearm kit for UK purchase offers a discreet solution for UK gun enthusiasts who value quality, function, and privacy.

Shop the 10.5″ Upper Kit at TopBoy →

Premium 10.5″ Railed Upper Build Kit with USB – Product Overview:

The 10.5″ Railed Upper Build Kit with USB is the perfect top-end solution for your next ghost gun build in the UK. Crafted from lightweight, high-strength materials, this kit includes a railed upper receiver, barrel, gas system, and USB charging compatibility for custom electronics or tools.

Whether you’re upgrading a 3D printed firearm kit or need an upper for a new build, this set provides seamless performance and tactical utility.

What’s Included:

• 10.5″ precision-engineered upper receiver

• Integrated Picatinny rail

• Barrel with gas block & tube

• Charging handle system

• USB-enabled component (optional interface)

• Forward assist & ejection port assembly

Shipped securely and discreetly within the UK. No serialization. No paperwork. Just reliable DIY performance.

Includes:

– Barrel
– Material: 4150 CMV
– Caliber: 5.56 NATO
– Twist: 1:7
– Length: 10.5″ (11.5″ if 11.5″ Build Kit is Selected)
– Gas System: Carbine
– Finish: Nitride
– Thread: 1/2-28
– Extension: M4
– Upper Receiver
– Material: 7075-T6 Forged Aluminum
– Type of Coating: Type III Hard Coat Anodizing
– Additional Features: Assembled with Forward Assist and Dust Cover, M4 Feed Ramps
– Handguard
– Material: Lightweight Aluminum
– Type: M-lok Rail
– Bolt Carrier Group
– Bolt Material: Mil-spec shot-peened Carpenter 158 steel
– Gas Key: Secured with grade 8 fasteners and staked per mil-spec.
– Bolt Carrier Material: Parkerized outside, chrome lined inside
– Lower Parts Kit
– Features: Enhanced Polished Trigger (EPT)
– Safety Selector, Detent, Spring
– Magazine Catch, Button, Spring
– Bolt Catch, Buffer, Spring, Buffer
– Takedown, Pivot Pins, Springs [2], Detents [2] – Buffer Retainer Pin, Spring
– Magpul MOE Grip, Trigger guard
– Buffer Tube
– Material: 7075 mil-spec carbine receiver extension
– Type: 5-position adjustable
– Additional Features: Castle Nut, Latch Plate
– Recoil System
– Buffer: Standard Carbine Buffer
– Spring: Carbine Length Spring

*Brace not included

Why Buy from TopBoy Ghost Guns UK?

At TopBoyGhostGuns.uk, we specialize in ghost gun parts for sale in the UK, shipping securely and privately with complete discretion. We support legal, ethical use of undetectable firearm kits for personal, hobby, and training purposes.

Why choose us?
✔️ Secure checkout
✔️ Fast UK-wide delivery
✔️ No background checks
✔️ Easy access to My Account
✔️ Full catalogue of kits & accessories

Explore More Resources:

• Community builds & Q&A on Quora

• Ghost gun legality & guides on Medium

• Tactical DIY boards on Pinterest

• Discreet builder journals on Dreamwidth